The 1975 Australian Drivers' Championship was a CAMS sanctioned Australian motor racing title open to Australian Formula 1 cars and Australian Formula 2 cars.[1] The championship winner was awarded the 1975 CAMS "Gold Star".[1] The title, which was the nineteenth Australian Drivers' Championship,[2] was won by John McCormack driving an Elfin MR6 Repco-Holden.[3]
The championship was contested over a five-round series.[3]
| Round | Race name | Circuit | Date | Round format | Round winner | Car | Report | |
| 1 | Australian Grand Prix[4] | Surfers Paradise | 21 August | One race | Max Stewart | Lola T400 Chevrolet | Report | |
| 2 | Marlboro 100[5] | Sandown | 14 September | One race | Johnnie Walker | Lola T332 Repco-Holden | ||
| 3 | Radio 2JJ Gold Star race[6] | Oran Park | 21 September | Two heats | John McCormack | Elfin MR6 Repco-Holden | ||
| 4 | TAA Gold Star race[7] | Calder | 19 October | Two heats | John McCormack | Elfin MR6 Repco-Holden | ||
| 5 | Phillip Island Classic Cup[8] | Phillip Island | 23 November | One race | Kevin Bartlett | Lola T400 Chevrolet |
Championship points were awarded on a 9, 6, 4, 3, 2, 1 basis to the first six placegetters at each round.[1] Only holders of a current and valid full General Competition License issued by CAMS were eligible.[1]
| Position | Driver | No. | Car | Entrant | Sur[9] | San | Ora | Cal | Phi | Total points | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | John McCormack | 9 | Elfin MR6 Repco-Holden | Ansett Team Elfin | 3 | - | 9 | 9 | 6 | 27 | |
| 2 | Johnnie Walker | 25 | Lola T332 Repco-Holden | John Walker | - | 9 | 3 | 6 | 4 | 22 | |
| 3 | Max Stewart | 1 | Lola T400 Chevrolet | Sharp Corporation | 9 | - | 6 | 4 | - | 19 | |
| 4 | Kevin Bartlett | 5 | Lola T400 Chevrolet | Shell Racing | - | 4 | 1 | 3 | 9 | 17 | |
| 5 | John Leffler | 7 | Bowin P8 Chevrolet | Grace Brothers Levis | 6 | 3 | 4 | - | 1 | 14 | |
| 6 | Bruce Allison | 62 | Lola T332 Chevrolet | Hobby & Toyland Racing | - | 6 | - | - | - | 6 | |
| 7 | Ray Winter | 27 | Mildren Mono Ford | Ray Winter[10] | 4 | - | - | - | - | 4 | |
| 8 | Paul Bernasconi | 6 | Lola T330 Chevrolet | Sharp Corporation | - | 2 | - | 2 | - | 4 | |
| 9 | Enno Busselmann | 10[11] | Elfin 622 Ford | Enno Busselmann | - | - | - | - | 3 | 3 | |
| 10 | Chris Milton | 10 | McLaren M22 Chevrolet | Labrador Pharmacy/Shell Racing | 2 | - | - | 1 | - | 3 | |
| 11 | Garrie Cooper | 12 | Elfin MR5 Repco-Holden | Ansett Team Elfin | - | - | 2 | - | - | 2 | |
| = | Ian Fergusson | Bowin P6 Ford | Ian Fergusson | - | - | - | - | 2 | 2 | ||
| 13 | John Goss | 2 | Matich A53 Repco-Holden | John Goss Racing P/L | - | 1 | - | - | - | 1 |
Note: New Zealander Graeme Lawrence placed fourth in the Surfers Paradise round but was not eligible to score championship points.[3]
Contemporary publications used various names for the championship including Australian Formula 1 Championship,[1] Australian Drivers' Championship[8] and Australian National Formula One Championship.[3] CAMS uses the term Australian Drivers' Championship in its historical documentation[2] [12] and this term has been used in this article.